GSC 94041, Murray Ridge, Northwest Territories (Jurassic of Canada)

Where: Northwest Territories, Canada (68.0° N, 136.4° W: paleocoordinates 61.6° N, 58.9° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Manual Creek Formation (Bug Creek Group), Aalenian (174.1 - 170.3 Ma)

Environment/lithology: marine; shale and siltstone

• Table 1 gives broad lithological descriptions of formations within the study area. The Manuel Creek Fm is predominantly shale, siltstone and sandstone.

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (in situ),

Primary reference: T.P. Poulton. 1991. Hettangian through Aalenian (Jurassic) guide fossils and biostratigraphy, Northern Yukon and adjacent Northwest Territories. Geological Survey of Canada Bulletin (410)1-95 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34233: authorized by Arnold Miller, entered by Karen Layou on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
Entoliid bivalve
 Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814 clam
 Pectinida - Propeamussiidae
"Propeamussium (Propeamussium) patriciae" = Propeamussium (Striatoamussium) patriciae
"Propeamussium (Propeamussium) patriciae" = Propeamussium (Striatoamussium) patriciae Poulton 1991 mud scallop
 Pectinida - Entoliidae
Entolium sp. Meek 1865 scallop
 Pectinida - Entolioididae
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
 Pholadida - Pleuromyidae
Pleuromya sp. Agassiz 1845 clam
 Cardiida - Cardiidae
Protocardia sp. Beyrich 1845 cockle
 Pholadomyida - Pholadomyidae
Homomya sp. Agassiz 1843 clam
Cephalopoda
 Belemnoidea -
Belemnitida indet. Zittel 1895 belemnite
 Ammonitida - Hildoceratidae